#!/bin/ash
# Optional script to be called instead of final reboot/shutdown
# To safely switch back to initrd root and unmount everything possible
# Mainly needed if you use changes= boot parameter in order to correctly
# unmount the changes device/filesystem. Also needed to free up all loops
# (to properly free disk space) if you delete an used lzm module.
#
# Call it this way in your shutdown script:
#   cd /mnt/live
#   exec ./cleanup <dev/console >dev/console 2>&1

export PATH=.:/mnt/live:/usr/sbin:/usr/bin:/sbin:/bin:/usr/lib

. /usr/lib/liblinuxlive

# This script needs to be re-executed to free up any shell
# from the union which may be used (eg. /union/bin/bash)
if [ ! "$RE_EXEC_CLEANUP" ]; then
   export RE_EXEC_CLEANUP=1
   header "Starting Archlive shutdown procedures..."
   echo "changing root back to initrd"
   pivot_root . $UNION
   echo "re-executing cleanup script"
   exec chroot . /cleanup "$@" <dev/console >dev/console 2>&1
   fatal "Something was wrong because we should never be here!"
fi

# kill all processes which can be killed
killall_unneeded $(pidof cleanup)

echo "unmounting union"
fumount -l $UNION/dev/pts
fumount -l $UNION/dev
fumount -l $UNION/proc
fumount -l $UNION/sys
fumount $UNION/boot
fumount $UNION

echo "unmounting images"
fumount $IMAGES/*

echo "unmounting mountpoints"
fumount $COPY2RAM
fumount $ISOMOUNT
fumount $XINO
fumount $CHANGES
fumount $MEMORY

fumount $MOUNTDIR/*

# eject cdrom devices
for MNT in $(ls -1 $MOUNTDIR 2>/dev/null); do
   CD=$(cat /proc/sys/dev/cdrom/info 2>/dev/null | grep name | grep "$MNT")
   if [ "$CD" -a "$MNT" ]; then
      echo "Ejecting $MNT..."
      /bin/eject -m /dev/$MNT >/dev/null 2>&1
      echo "CD tray will be closed in 6 seconds..."
      sleep 6
      /bin/eject -t /dev/$MNT >/dev/null 2>&1
   fi
done

if [ "$DEBUG_IS_ENABLED" ]; then
   echo "Everything should be correctly unmounted now so we can $1"
   echo "Verify it using 'losetup' and 'cat /proc/mounts'."
   /bin/ash
fi

sync
echo $1
# $1 = action, eg. poweroff or reboot
if [ "$1" = "" ]; then reboot -f; fi
if [ "$1" = "halt" ]; then poweroff -f; else $1 -f; fi

fatal "Something was wrong because we should never be here!"
